Struct NullExtensionRunner 

pub struct NullExtensionRunner;

No-op extension runner used before pi-ext lands and in unit tests.

Trait Implementations

impl Clone for NullExtensionRunner

fn clone(&self) -> NullExtensionRunner

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NullExtensionRunner

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for NullExtensionRunner

fn default() -> NullExtensionRunner

Returns the “default value” for a type.

impl ExtensionRunner for NullExtensionRunner

fn has_handlers(&self, _event: &str) -> bool

Returns true when at least one handler is registered for event.

fn emit( &self, _event: AgentSessionEvent, ) -> BoxFuture<'_, Result<Option<CancelResult>, ExtensionRunnerError>>

Emit a generic session lifecycle event (agent_start, turn_, tool_, etc.).

fn emit_message_end( &self, _message: AgentMessage, ) -> BoxFuture<'_, Result<Option<AgentMessage>, ExtensionRunnerError>>

Emit message_end and optionally return a replacement message.

fn emit_tool_call( &self, _tool_name: &str, _tool_call_id: &str, _input: Map<String, Value>, ) -> BoxFuture<'_, Result<Option<BeforeToolCallResult>, ExtensionRunnerError>>

Emit tool_call (before execution). Returns an optional block result.

fn emit_tool_result( &self, _tool_name: &str, _tool_call_id: &str, _input: Map<String, Value>, _content: Vec<ToolResultContent>, _details: Value, _is_error: bool, ) -> BoxFuture<'_, Result<Option<AfterToolCallResult>, ExtensionRunnerError>>

Emit tool_result (after execution). Returns an optional override.

fn emit_input( &self, _text: &str, _images: Option<Value>, _source: &str, _streaming_behavior: Option<&str>, ) -> BoxFuture<'_, Result<InputTransformResult, ExtensionRunnerError>>

Emit the input transform event.

fn emit_before_agent_start( &self, _prompt: &str, _images: Option<Value>, ) -> BoxFuture<'_, Result<Option<BeforeAgentStartResult>, ExtensionRunnerError>>

Emit before_agent_start and return optional message/system prompt injection.

fn emit_resources_discover( &self, _cwd: &str, _reason: &str, ) -> BoxFuture<'_, Result<ResourceExtensionPaths, ExtensionRunnerError>>

Discover additional resource paths from extensions.

fn get_registered_commands(&self) -> Vec<String>

Registered slash-command names (extension source).

fn execute_command( &self, _name: &str, _args: &str, ) -> BoxFuture<'_, Result<bool, ExtensionRunnerError>>

Execute an extension slash command by name.

fn get_all_registered_tools(&self) -> HashMap<String, Arc<dyn AgentTool>>

Registered extension tools by name.

fn get_flag_values(&self) -> HashMap<String, Value>

Flag values provided by extensions.

fn invalidate(&self)

Mark the runner invalid after session replacement.

fn emit_error(&self, _message: String)

Report an extension error to the host error listener.

fn emit_message_update_delta<'a>( &'a self, _event: &'a AssistantMessageEvent, ) -> BoxFuture<'a, Result<Option<CancelResult>, ExtensionRunnerError>>

Emit a compact streaming assistant delta.

fn has_command(&self, name: &str) -> bool

Whether a slash command named name is registered.